Channel Bonding issue in Cluster Suite Setup - Discuss

27 Dec 2007


      Dear All,
I have configured RHEL Cluster Suite with 2 servers
Server 1 : 192.168.13.110 IP Address and hostname is primary
Server 2 : 192.168.13.179 IP Address and hostname is secondary
Floating : 192.168.13.83 IP Address (Assumed by currently active server)
In am followed the RHEL Cluster Suite Configuration document 
"rh-cs-en-4.pdf" and
I have configured Ethernet Channel Bonding in Each Cluster Nodes
Channel Bonding Configuration Details are
1) Created bonding devices in "/etc/modprobe.conf" file  
     alias bond0 bonding
     options bonding miimon=100 mode=1
2) Edit the "/etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-eth1" 
configuration
    DEVICE=eth0
    USERCTL= no
    ONBOOT=yes
    MASTER=bond0
    SLAVE=yes
    BOOTPROTO=none
DEVICE=eth1
    USERCTL= no
    ONBOOT=yes
    MASTER=bond0
    SLAVE=yes
    BOOTPROTO=none
3) Created a network script for the bonding device is 
"/etc/sysconfig/network-scripts/ifcfg-bond0"
    DEVICE=bond0
    USERCTL=no
    ONBOOT=yes    
    NETMASK=255.255.255.0
    GATEWAY=192.168.13.1
    IPADDR=192.168.13.110
4) Reboot the system for the changes to take effect.
After i am rebooted both the server then cluster node becomes simplex 
and Services are started on both the nodes
The cluster output in primary node
Member Status: Quorate
Member Name                              Status
----------- -------                              ---------
primary                                         Online, Local, rgmanager
secondary                                      Offline
Service Name         Owner (Last)                   State
--------- --------         -----------------                   --------
Service                      primary                        started
The cluster output in secondary node
Member Status: Quorate
Member Name                              Status
----------- -------                              ---------
primary                                         Offline
secondary                                      Online, Local, rgmanager
Service Name         Owner (Last)                   State
--------- --------         -----------------                   --------
Service                      secondary                     started
Before Ethernet Channel Bonding cluster services are active in one node and
other nodes acts as passive node and member status is Online for both 
the nodes
But after Ethernet Channel Bonding cluster services are active on both 
the nodes and
member status is current node is Online and other node is Offline
We are not sure why this is happening. Can some one throw light on this.
Regards
-S.Balaji